Atmega328 Programmer Shield for Arduino UNO - DIY Kit

Pro Mini Enhancement ATMEGA328P 16MHz 5V Compatible Arduino PRO Module

2 x Atmega328P-PU Arduino Bootloader installed (for UNO R3)

10pc ATmega328P MINI 5V 16M Micro-controller Board Arduino Pro Mini 328 5V 16MHz

For Arduino UNO R3 Shield Board Prototype PCB Atmega328P 2.54mm Pitch Breadboard

3 x CANADUINO® Arduino Screw Terminal Adapter for Nano Atmega328P

NANO V3 USB-C Atmega328, CH340 (for Arduino)